post https://gateway.us.zip.co/merchant-disputes/close
Sandbox (Testing): https://gateway.sand.us.zip.co/merchant-disputes/close
Accept losing the dispute and close the dispute.
{
"merchantId": "3fa85f64-5717-4562-b3fc-2c963f66afa6",
"disputeId": "du_2Nh2yAD4niJYPQuMLbKMyEvJ"
}